Question
Download Solution PDFIf ‘+’ and ‘÷’ are interchanged and ‘−’ and ‘×’ are interchanged, then what will come in place of the question mark (?) in the following equation?
15 × 2 − 48 + 4 ÷ 5 = ?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven equation: 15 × 2 − 48 + 4 ÷ 5 = ?
Interchange rules:
- ‘+’ becomes ‘÷’
- ‘÷’ becomes ‘+’
- ‘−’ becomes ‘×’
- ‘×’ becomes ‘−’
Applying the interchanges to the given equation:
⇒ 15 − 2 × 48 ÷ 4 + 5 = ?
Following BODMAS rules:
⇒ 15 − 2 × 48 ÷ 4 + 5 = ?
⇒ 15 − 2 × 12 + 5 = ?
⇒ 15 − 24 + 5 = ?
⇒ -9 + 5 = - 4
Hence, the correct answer is "Option 1".
Last updated on Jul 16, 2025
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